Patents by Inventor Alain Charlet

Alain Charlet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pneumatic hybrid internal combustion engine on the basis of fixed camshafts
    Patent number: 8657044
    Abstract: The present disclosure relates to an pneumatic hybrid internal combustion engine with at least one combustion chamber composed of a cylinder in which a piston is arranged mechanically interconnected to a crank shaft via a piston rod. An inlet valve and an exhaust valve are both mechanically interconnected via a valve gear to the crank shaft. The engine further includes at least one charge valve which is actuated by a charge valve actuator in a fully variable manner such that the engine can be operated in a four stroke hybrid mode.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: February 25, 2014
    Assignee: ETH Zurich
    Inventors: Christian Dönitz, Christopher Onder, Julian Vasile, Lino Guzzella, Pascal Higelin, Yann Chamaillard, Alain Charlet
  • PNEUMATIC HYBRID INTERNAL COMBUSTION ENGINE ON THE BASIS OF FIXED CAMSHAFTS
    Publication number: 20110023820
    Abstract: The present disclosure relates to an pneumatic hybrid internal combustion engine with at least one combustion chamber composed of a cylinder in which a piston is arranged mechanically interconnected to a crank shaft via a piston rod. An inlet valve and an exhaust valve are both mechanically interconnected via a valve gear to the crank shaft. The engine further includes at least one charge valve which is actuated by a charge valve actuator in a fully variable manner such that the engine can be operated in a four stroke hybrid mode.
    Type: Application
    Filed: September 19, 2008
    Publication date: February 3, 2011
    Inventors: Christian Dönitz, Christopher Onder, Julian Vasile, Lino Guzzella, Pascal Higelin, Yann Chamaillard, Alain Charlet
  • Apparatus for the thermal conversion of gypsum
    Patent number: 4247518
    Abstract: An apparatus for effecting the thermal conversion of gypsum to calcium sulfate hemihydrate includes a reactor having a series of fluidized bed compartments containing separate heat exchangers and defined by partitions each provided with an opening which is selected so that the material undergoing treatment progresses, without return movement, through the series of fluidized bed compartments. The apparatus is further constructed so as to permit recycling of fine gypsum particles from the outlet to the middle of the reactor.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: January 27, 1981
    Assignee: Rhone-Poulenc Industries
    Inventors: Alain Charlet, Jean-Paul Coquery, Francois Mounier